I switched to 225 S05's at the last race. I ran 225 710s prior to that with no prob. They are on Team Dynamic 14x7s. I had to put 2 5mm spacers on each rear corner to prevent the S05's from rubbing the trailing arm. This has pushed them a little too far beyond the fender. I suppose the next step is to put 205s in the rear. Has anyone else had similar experiences? How much softer does the rear need to be to compensate?